New York -LRB- CNN -RRB- -- A self-described `` ex-madam '' who claims she supplied fellow city comptroller candidate Eliot Spitzer with escorts several years ago is facing charges of illegally distributing prescription drugs , authorities said .

Kristin Davis , 38 , was arrested on Monday night and charged with selling Adderall , Xanax and other drugs . She 's also accused of orchestrating the sale of approximately 180 oxycodone pills for cash .

The candidate was released Tuesday on $ 100,000 bail , with a preliminary hearing scheduled for September 5 . Prosecutors said she will have strict pretrial supervision .

`` Prescription drug abuse is the fastest-growing drug problem in this country , resulting in more overdose deaths than heroin and cocaine combined , and this office has a zero tolerance policy towards anyone who helps to spread this plague at any level , '' Preet Bharara , Manhattan U.S. Attorney , said in a statement .

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Davis is charged with four counts of distributing and possessing with intent to distribute a controlled substance . She faces a maximum sentence of 20 years in prison for each count , if convicted .

Prosecutors allege that from 2009 through 2011 Davis bought ecstasy pills , Adderall pills and Xanax pills from an FBI cooperating witness at least once a month , paying hundreds of dollars for each purchase . She told the witness she provided these drugs to people at house parties , authorities say .

An attorney for Davis was could not be immediately reached for comment .

Davis ' campaign manager , Andrew Miller , said he was aware of the arrest but could n't provide any information .

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Based on information from the FBI 's witness , the FBI set up a sting operation from January through March of this year , in which Davis sold pills on three separate occasions to the witness , who she believed to be a drug dealer , the complaint states .

Davis became synonymous with the prostitution scandal involving Spitzer , then serving as governor . She has no proof of her arranging escorts for Spitzer , but she did spend four months behind bars because of her business . Spitzer , a Democrat , resigned in 2008 .

A former hedge fund senior vice president , Davis is running as a Libertarian with a plan to legalize marijuana in New York City .

CNN 's Jesse Solomon and Mark Preston contributed to this report .

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Kristin Davis is accused of peddling prescription drugs

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Davis , 38 , is running for New York City comptroller

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Prosecutors say there was an FBI sting